Vulnerabilities > CVE-2017-2300 - Denial of Service vulnerability in Juniper Junos
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
PARTIAL Summary
On Juniper Networks SRX Series Services Gateways chassis clusters running Junos OS 12.1X46 prior to 12.1X46-D65, 12.3X48 prior to 12.3X48-D40, 12.3X48 prior to 12.3X48-D60, flowd daemon on the primary node of an SRX Series chassis cluster may crash and restart when attempting to synchronize a multicast session created via crafted multicast packets.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 8 |
Nessus
| NASL family | Junos Local Security Checks |
| NASL id | JUNIPER_JSA10768.NASL |
| description | According to its self-reported version number and configuration, the remote Juniper Junos SRX series device is affected by a denial of service vulnerability in the flow daemon (flowd) when handling multicast session synchronization. An unauthenticated, adjacent attacker can exploit this issue, by sending specially crafted multicast packets, to cause the flowd daemon to crash and restart. Note that this vulnerability only occurs in chassis cluster configurations that process transit multicast traffic. Transit multicast traffic is processed on an SRX services gateway by enabling PIM in normal Flow Mode, or via security policies permitting transit multicast traffic in L2/Transparent Mode. Nessus has not tested for this issue but has instead relied only on the device |
| last seen | 2020-03-18 |
| modified | 2017-01-20 |
| plugin id | 96658 |
| published | 2017-01-20 |
| reporter | This script is Copyright (C) 2017-2018 Tenable Network Security, Inc. |
| source | https://www.tenable.com/plugins/nessus/96658 |
| title | Juniper Junos SRX Series Gateway Chassis Cluster flowd Multicast Session DoS (JSA10768) |